Combined type-writing and computing machine.



F.A. HART. 4 v COMNED TYPE WRITING ANDICOMPUTIING MACHINE. 1,2'4;,6f7.V

APPLICATION F-ILED SEPT. I8, ISH.

U-NTED STATES? PATENT oEEIcE.

minnmncx n. naar, or JERSEY CITY,

NEW' J ERSEY, A SSIGOB T0 UNDEBWOOD COMPUTING I IIACHINECOMPANY, F NEW YORLN. Y., CORPORATION 0F NEW new: and'fuseful; Improvements-.in Combined..

*impe-Writing and oompuepginehmes, of which :the: following .is,.a. lspecication.f ";-My.' invention relates .computing 'mal .s'uchiglfon instance .as 4thatpsshwn -in :automatically operated devcesfL-{ori use' 1n -'15.. .s tarting. a :,motondnive'- for combined type.

' 1 :l-wrting n computing-machines. 1 I #have primarily-desigedt cabe used, in conneclimotonas' shown'A inpatentf to "Thornton, No.

Emea-371, dated July la-,lal-dandto be at- In'ithis adding v2s Forum typewriterre. fo @et JP3-Pins 'r ifgeneralmroperatommpissr.add'. Vinto the to? Land.- is I rdisconnected from 4the mechanism,

aften each-movement of the general operator is fcompleted. f A

My invention comprises automatic means vfor starting'ths Imotor after striking, the lhlrmeral ke which 1prints the numeral in j the units co umn of it e computing dev1ee.

1 In carrying out this invention, prefer to employ an electric circuit, which actuates an electromagnet, .to raise the general operator. 0 Certain' -eaturesof .my inventlon are ap- 'plieable-toother machines in which the 1110-.

u'dson and= ion -vvithan intermittently operated .electric y eral operator. wherebythe-extent of 'rotation Aget ler'al operai pin controlling a s'wtchand a 4clutch between the motor and -ANn-oourp'rmo momma .sppcmcdontextmrmnt Patenteduan 22.1918. ;eprlicauonnieasetnrer13,1911."sermrrraeaaaaz.

- Vwill hereinafter be pointed out, or b'e obvious to those skilled in the art.

In' the accompanyingdrawngs,

Flgure 1 is a. sectional elevation of an Underwood-Hanson A.combined typewriting and addingmachin'e, ofl thekind to which the above lmprovements areapplied.

F1g.-2 is a front elevation, partly in section,4 of the electromagnet', the motor, and

the connections between them.:

. electromagnet .andthe contacts -for starting the motor.

F isanenlarged view ofthe electric contacts. :l

' Fig. ris enculer-ged plan view of the shifting device operated by the carrie e.

clutch of themotorwhen at rest.-

Fig."7 is a 'section through the. same a the moment of., starting.

Fig. 8 isa side-elevation oi?- a; pair offor supportingand operatin a rotary bridge.,

Fig. 10 is an"-elevation o -sha. d ring.4 "g. '11- is a. fragmentary section showing the ends of.. the'ayacks vand the Atappet for raising them.'

lblumeral keys' lgdepress levers-2 to operthe clutch cup ate through -bellcranksto'throw type barsg 'f 4 upwardly and `rearwardlyr to strike on the frontof platen 5, which is mounted to'travel l ons. letter-feeding carriage 6, driven in the usual manner by a spring (not shown). This carriage' is controlled by letterfeeding devices comprising a lii/ersal bar 7 actuated by heels 8 on the type Abars 4, and forming part of a. frame 9, Whlch has vbrating supports .1.0, and actuates the usualletter feeding dogs 11 tocontrol eseapement wheel 12. i

Upon said carra e 6 is a tappet or dog 13, which is usually a justab'le along the rack bar 14, and has a cam edge to lift successively jacks 15 arranged in a row, mounted4 on a fulcrum 16.v The rear ends-17 of the jacks press down links 18, to vibrate levers 19, which are connected to linka es 2O to elevate the rear ends of a series o bars 21,

fsu

whose forward ends carry racks 22, meshing with pinions 23connected to dial wheels 24, whereby the latter may be rotated.

The numeral keys 1 have stems 25 to op crate arms 26 fast upon shafts 27, which support linkages 28 on arms 29. These linkages are depressed when arms 2 6 are depressed, and are adapted to strike any one of a series of pins 30 upon the elevated rack bar 21. As the carriage 6 feeds step by step, the rack bars 21A are elevated in succession, and downwardly 'from each is projected a pin 30 in the manner just described. The rack bars fall tonormal osition, thus bringing the depressed pins into the path of a cross bar 3 1 forming part of a general operator. Thegeneraloperator, which also comprises a pair of arms 32 and a pair of racks 33 on opposite sides of the machine, is connected by pinions 34 and segments 35 to a shaft 36. After the pins are setup e. depressed) by the numeral keys l, the general operator moves forward, andthe bar 31 of the general operator engages all the depressed pins and drives forward the racks 22 correspondin distances, ,to turn the dial wheels 24 -accor ingly. The wheels are not turnedbn the`return stroke, because of a paw] and ratchet connection not shown, but the pins are reset in their original positions ready to be set up for a new number. It will be noted that the bars 31 form members in which numbers are temporarily registered by the depressed pins. r

To drive the machine by ower, an intermittently operated motor 3 is attached to the adding machine table 38 and is provided with a main shaft 40. Upon shaft 40 is xed worm 41 'turning worm wheel 42 .Y

mounted ,to revolve on shaft 43. Arm-44', fast on shaft 43, carries slide 45 mounted in bar 46. Thus when `the motor 37 turns worm 41 and worm wheel 42,- if shaft 43 rotates with wheel 42, the arm 44 will rotate about shaft 43, reciprocatin the bar 46, on which rests a yoke 47 bolte to the rack 33 of the general operator and the motor will drive said operator forward and back by said yoke.

Key 48 on plunger 49 depresses bar 50 to strike the end 51 ofv lever 52 to raise pin 53,

which controls the clutch and switch 'of motor 37.

Referring now particularly to Figs. 2, 6, 7, 8. 9 'and 10, pin 53 extends normally through casing 54, so as to press arm 55 against shoulder 56 of ring 57 said arm thus compressing spring 59. Ring 57 is not fixed to hub 60 of worm wheel 42, but is frictiona lly engaged therewith by the action of blocks 61 pressed against hub 60 by springs 62 mounted on ring 57 bv screw 63. Within sockets 64, of ring 57, rolls 64l turn freely and are normally out of contact with starting cup member 65 fixed on shaft 43 (see Figs. 3 and 4).

by key 66. Cup member 65 has sockets 67 to insure this freedom from Contact, but if hub 60 turns counterclockwise slightly, it carries counterclockwise the ring 57 and rolls 64 to the main part of ring 65 and the jam, thus 'forcing ring 65 and hub 60 to revolve to gether, and the combination forms a clutch driving the shaft 43 from worm wheel 42.

Arm 55 is formed as a turned up edge of rin 68 loose on cup member 65. On ring 68 1s mounted the conductor ring 69, constituting a rotary bridge having a gap filled by insulation segment 70. Against thisring bear theends 71 and 72 of brushes`73 and 74 mounted on insulator plate 75 fixed on stud 76 of the casing. Through these brushes the current driving the motor passes from wires 77. There will then be one position of the brushes in which end 71 of brush 73 will bear on the insulator segment 70. In this position, the motor will not be driven, `and the parts are so arranged that this is the case when' pin 53 'is holding arm 55, as shown in Fig. '6. To start the motor the brushes and insulator segment70 are so set that theV withdrawal of .pin 53, as shown in Fig. 7, will bring the conductor part of ring 69 over brush 73, thus sending Athe current through' the motor. This caryrent ceases to pass through the motor,

though the momentum may keep it revolvingl1 independently for a time.I Y

o effect the automatic starting of the motor the following mechanism is used. Fig: 5 is an enlarged plan showing the frame 79 carrying the jacks 15. Thelast jack to the left bears on a link 18 which extends downward like the other links 18 above described, but carries a lug 80 carrying-a pin which rests in fork 81 of bell crank 82, the other end 83 of whichJcarries aspring 84 extending from the main frame, and tending to draw link l18 upward. Beneath the boss of lever 82 is 4a pin 85 f insulating' material resting on' electric spring terminal 86 and adapted to press 'it against another terminal 87 and thus close a leading circuit A wire 88 is connected to terminal 87 by suitable binding keys and leads to the windings 88 of an e1ectro-mag net supported from the main frame by a U- shaped member 89 held to its yoke by screws 90. Above the cores 91 of the magnet is an jam, and then the whole clutch'- armature 92 attached by screws 93 to lever i nish a low tension current which will not spark.

It will be evident, that when the dog 13 is moved along with the typewriter carriage past the units jack, for the' last computing or units column of figures, said dog will strike' i in feeding te nie nen ienirspa, the 13st*- or special'ack momentarily 'and depress the pin 85 to c ose the leading circuit around the magnet.' This will draw the armature down,- raise the starting' 4pin, and the motor in the main circuit will drive the worm wheel till one strokeof the general opera-tor is finished, thus adding infth'e numeriils just written, and restoring vthe pins'ready to be set for a newnumber.'

Special jack 1 5is cut, anjay at 95, Fig. 11 so that it is'inot'hel'd raised, but is only raisedmornenta'rily as the` carriage in its letter` spacing movement carries-the t pet 13 from -thc position of 4rest when writing in the units column tothe next position of rest, or letter space. Thus the link 18 closes the leadingcircu'it j ust'longen'ough to energize the magnet and thus raise the Startingpinf Fig. 1 1 shows the`po'sition'ofthe. parts after passin'gthe u'iiit's'jack and striking the special `zicli.,.l 'J Variations may'be resorted to vvithinthe scope of tli'e' invention, and portions of the improvements may beused withouty others.,

Having thus'de'isc'rili'edY my invention, I lfiim:

1. A' combined typ'ewriting and computing machine having@ lctter'feeding c ar riage, computing mechanism, and typewriter numeral keys for indexing numbers to be run,A into said c'o'ni' i'itin'g ii'ie'clianism;vl and comprising, in co n'at'io'n', a. normally ineffective power device 'for ruiming n'umbe'rs indexed into'sa'id computing mechanism, a

l device provided With-,aniindependent source of power for' controlling' the effectiveness of said power' device'and to render the saine ineffective onfconipletin ofthe running, in of the numbers indexed, and means con- A nected t0 Said carriagefor momentarily acting on said control device at thc movement of Said-carriage on the writing ot' a numeral iniunits place'.

'2. A combined typewritin'g and comput- 'ing machine 'having a 'letter-feeding carriage,

computing mechanism, and indexing mechanisni for indcxiiigvnui'nbers to be run into said computing mechanism; and comprising, in combination, an electric motor for running numbers indexed into said computing mechanism, a normally open circuit for said motor, normally ineffective connections between said motor and the computing mech anis-m, a device controlling the effectiveness and ineffcctiveness of said motor on the computing mechanism through the medium of said circuit and said connections, an independent source of power for actuating said controlling device, and means brought into action on the writing of a number in units place, for acting on said control device.

l3. A -co'inbined typewriting and computf in machine having cou'iputing mechanism, a etter-feeding carriage, means for index ing numbers, and a general operator for run'- ningintoY the computing mechanism the number indexed; and comprising,y in combi# nation, a inotorfor said general operator, means for inciting said motor to act-ion, an electric circuit independent yo the motor circuit for acting on said inciting means, and means brought into action on a letter-fced ing movement of' said carriage, for momentarily closingsaid independent circuit.

4. The combination'wvth a combined typewritingand computing mechanisim of an operator driving 'and setting the computing mechanism', amotor driving saidoperator, a

carriage,1nen`s on the' cru-inge for con-` trollinir the computing'me'chanism andfo'r' 'contro ng the closing'of an electric circuit on writing'a numeral in a given' letter space, i

a magnet in Asaid circuit, an armature moved by said'magnet, and a starting device for the motor .operated'bv said armature.-

5. The combinationI with a combinedtype'- writing and 4c'on'i-puting mechanism, of an operator -drivin'g'a'n'd resetting the Comput ing mechanism, a motor driving said operator, :iV carriage, an electric circuit, means on the carriage for controlling the Comput# ingr mechanism and for controlling the closing of said circuit on writing a'numeral in agiven letter space, a magnet in'said cir' cuit, an armature `moved by Said magnet, a1

lever carrying said armature', a pin carried by an arm of said lever, anda switch held by Said pin and adapted on itS being moved to start said motor.

6. The combinationnvith a combined typevwriting and .computing mechanism, of a motor driving the computing mechanism, 'a

carriage, numeral keys, letter feedingr means for the carriage controlled by said keys, a jack-setting device on the carrii'ige, jacks on the main trame, one for each column of figures recorded by the coniputing mechanism, a special jack'tolloiviiig the jack for the units column of the computing mechanism, a link inovcd byisaid special jack, a

bnl] crank support-ing said link, a spring cooperating with an arm ot' said hell crank to support said link` a member moved by said link, aii electric circuit. closed by said mem! bei', a magnet in saidciicuit, an armature moved by said magnet, a lever supporting said armature, a and a starting device for the motor controlled by said pin.

7. The combination with a combined typewriting and computing mechanism, of numeral keys controlling the computing mechanism, a carriage, letter feeding means for the carriage controlled by the keys, jacks supported on the main frame, one for each column of figures recorded by the computing mechanism, a special jack supported on the main frame, a .jack moving'rnemberon said carriage, a link moved by the special jack, a circuit closed/by the link, a magnet energized by the circuit, a motor started by the lmagnet, an operator driving and resetting the computing mechanism driven by the motor, and means to stop the motor after setting the computing mechanism. 1

8. A combined'typewriting and computing machine having computing mechanism, a letter-feeding carri age, means for indexing numbers, and a' eneral operator for running into the computing mechanism the numbers interdexed; and comprising,- in combination, a normally inactive motor for said general operator, means for'inciting said motor to action, an electric circuit independent ofthe motor circuit for acting means, means brought into action onA a letfeeding movement of said carriage, on Writing inuunits column for momentarily closing said independent circuit, and means dependent upon the operation of the motor for restoring it to normal inactive condition.

, In a combined typewriting and computing mechanism, numeral keys controlling the computing mechanism, a carriage, letter feeding means for the carriage controlled by the keys, jacks supported on the main frame, one for each column of figures recorded by the computing device, a special jack supported on the main frame, means on the carriage to'move the jacks successivelyby the letter feeding means, a link moved 4by said special jack, a terminal moved by said link, an electric circuit closed by said terminal, an armature moved by said magnet, a motor, a motor circuit closed by said armature, and means to enable the motor to effect a cycle of operations of the computing mechanism.

10. A combined typewriting and com uting machine having computing mechanism, a letter-feeding carriage, means for indexing numbers and a general operator for running 4 into the computing mechanism the numbers indexed; and comprising in combination, a normally inactive motor, means for 1nc1t1ng -said motor to action and automatically mainpin on an arm of said lever,

numbers and normally inactive .ing.to said out-away 'of said letterv fe ing movementwhereby omentarily' on said inciting lmotor, means independent 11. A combined typewriting and com ut-v ing machine having computing mechanism, a letter-feeding carriage, means for indexing a general operator for running into the computing mechanism the numbers indexed; and comprising in combination, a motor, means for inciting said motor to action and automatically maintaining the aotivit thereof through a cycle of operationsf t e general o erator, said incitlng means includlng an independent or leading circuit acting on said inciting means, a jack havinga full ortion and a cut-away portion and means or engaging said jack at its full portion, during a letter-feeding movement of said carriage to close said leading circuit, said last 'mentioned `ineans pass- -portion on completion saidV leading. circuit is but closed. j

12. In a combined typewriting and computing machine, the combination with a letter-feeding carriage and indexing devices, vfor setting up numbers, of

i a. computing mechanism into which they are later carried from said indexing devices, means for operstings-aid mechanism comprising a motor and an electric circuit therefor, means controlled by a letter-feeding movement of said carriage for automatically closing said circuit, automatically connecting said motor to the computing mechanism, for automatically keeping said circuit closed during a cycle of operations of said computing mechanism 'and for 'automatically disconnecting said motor and opening the circuit.

13.- In a combined typewriting and computing machine, the combination with members in which Anumbers are temporarily regf istered, of a computing mechanism into which they are carried from said members, a motor for so carrying said numbers, a nor mally-opencircuit fondriving said motor, a leading circuit, controlling means for momentarily closing the leading circuit, thereby to close the first-named circuit and start said of said control` ling means for holdin said first-named circuit closed until saidg motor completes its Work, and for automatically opening the cir cuit and restoring itto condition for closing by said controlling means.

4A A combined typewriting andcomputing machine having computing mechanism, a letterefeeding carriage, means for indexing numbers and a general operator for running into the computing mechanism the numbers-indexed; and comprising in com Y mechanism,

letter-feeding carriage controlled by said keys, of a computing mechanism into which sald numbers are carried, a motor normally ineffective and normally disconnected from said computing mechanism, and automatic means first started from and then released by any of said keys and acting through the V'medium of said carriage to successively control the starting of the motor, its connection with the computing mechanism, its stopping, its disconnection from said computing and its restoration to position to be started by said carriage.

23. In a recording computing machine, the combination with numeral keys and com'- puting Wheels, of normally disconnected devices by which numbersset up by said ke s are later carried into said computing whee s, a motor for driving said devices, a circuit for said motor normally open, means dependent upon the setting up of a digit in the units place for automatically connecting said motor to said devices and closing said circuit driving said motor, and means independent of said carriage but dependent upon the operation of said motor for disconnecting it and opening said circuit at the completion of the cycle of operation of the computing devices.

24. In a combined typewriting and com puting machine, the combination with keys for setting up numbers, of a computing mechanism into which they are carried, a motor normally inactive and normally disconnected fromk said computing mechanism, and automatic means called into action by any ofsaid keys acting to successively control the starting of the motor, its connection with the computing mechanism, its disconnection from the control of said keys, its

v stopping, its disconnection from said computing mechanism, and its restoration to the control of said keys.

25. In a computing machine, the combination with numeral keys and computing Wheels, of devices by Which numbers set up by said keys are later carried into said computing Wheels, a motor for driving said devices, a circuit for said motor normally open, mechanism brought into action by any of said keys for automatically connecting said motor to said devices, closing the circuit driving said motor, and disconnecting the motor from the control of said keys, and means included in said mechanism effective at the completion of the cycle of computing operations for opening the motor cir cuit, disconnecting the connecting devices between the motor and the computin devices, and restoring the motor to con ition to be controlled by said keys.

26. In a combined typewriting and computing machine, the combination with a traveling carriage, of numeral keys, devices operated thereby for letter-feeding said carriage, computing wheels, devices by which the numbers set up by said keys are later run into said computing wheels, a motor for of the cycle of computing. operations for opening the motor circuit, disconnecting the connecting devices between the motor and .the computing devices, and restoring the motor to condition to be controlled by said can riage.

27. In a combined typewriting and computing machine, the combination with eomputing mechanism and a traveling carria c, of a motor for driving the computing medial` anism, a circuit wherein said motor is included, a contact in said circuit, a starting disk, a member normally holding said disk against starting, means under the control of the carriage for disengaging said member to permit said disk to start, and then releasing said member, and means brought into action by the starting of said disk to close said circuit, and to enable the motor to drive the computing mechanism, and finally to open said circuit, disconnect the motor from the computing mechanism, and to restore the control of the carriage.

28. In a 4combined typcwriting and computing machine, the combination with computing mechanism, a traveling carriage and letter-feeding devices for said carriage, of a motor to drive the computing mechanism, a motor circuit, a contact therein, a starting disk having an insulation segment normally engaging said contact, and a conducting portion brought into engagement with said contact by the starting of said disk to close said motor circuit, a member normally holding said disk against starting, an electro-magnet, a magnet circuit, an` armature associated with said magnet and connected to release said holding member when said magnet is energized to permit said disk to start, means under the control of the carriage durin letter'feeding movement for closing sai magnet circuit, said closing means bein automatically released from the control o said carriage, said holding member eiective on said disk at the completion of the computing operation to open the motor circuit and restore it to its normal condition of being controllable by said carriage.

29. A combined 4typevvriting and computing machine having typewriter numeral keys, computing mechanism, and devices for indexing numbers under control of said keys; and comprising, in combination, a mofor for running imov the computing machu 'beingA openedand said Vcomuactm beingmsm the number xndoxofl'a normally opon rnderucl mefechvautomatically ,at the. 1'1- mroiui for :fund motor, u normally .lucfi'eccom plctxon of the rurll'mng 14n of numbers. l 

